EP 3385705 B1 20200101 - METHOD AND APPARATUS FOR EXTENDING ANGULAR COVERAGE FOR A SCANNING TWO-DIMENSIONAL X-RAY DETECTOR
Title (en)
METHOD AND APPARATUS FOR EXTENDING ANGULAR COVERAGE FOR A SCANNING TWO-DIMENSIONAL X-RAY DETECTOR
Title (de)
VERFAHREN UND VORRICHTUNG ZUR ERWEITERUNG DER WINKELABDECKUNG FÜR EINEN ABTASTENDEN ZWEIDIMENSIONALEN RÖNTGENDETEKTOR
Title (fr)
PROCÉDÉ ET APPAREIL DESTINÉS À ÉTENDRE LA COUVERTURE ANGULAIRE D'UN DÉTECTEUR DE RAYONS X BIDIMENSIONNEL DE BALAYAGE
Publication
Application
Priority
US 201715479335 A 20170405
Abstract (en)
[origin: EP3385705A1] A method and apparatus for performing an X-ray diffraction measurement with a diffractometer having an X-ray beam directed at a sample and a two-dimensional X-ray detector includes the performance of a physical scan during which the detector is moved through a scanning range in an angular direction about the sample position. To provide a uniform exposure time, the detector, when located at an extreme of the scanning range, is controlled to progressively change the portion of the detected X-ray energy that is used at a rate that maintains a uniform exposure time for each angular position in the scanning range. Alternatively, when located at an extreme of the range, the detector is kept stationary until a desired minimum exposure time is obtained for each angular position, after which the collected diffraction data is normalized relative to exposure time.
IPC 8 full level
G01N 23/207 (2018.01)
CPC (source: EP US)
G01N 23/207 (2013.01 - EP US); G01N 2223/056 (2013.01 - EP US); G01N 2223/1016 (2013.01 - EP US); G01N 2223/33 (2013.01 - US); G01N 2223/62 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3385705 A1 20181010; EP 3385705 B1 20200101; JP 2018179987 A 20181115; JP 7113650 B2 20220805; US 10295484 B2 20190521; US 2018292334 A1 20181011
DOCDB simple family (application)
EP 18165543 A 20180403; JP 2018073213 A 20180405; US 201715479335 A 20170405